Experts point out that oral diseases have a close impact on the health of the whole body: it can cause coronary heart disease, infective endocarditis, chronic respiratory diseases, diabetes, gastrointestinal diseases, premature birth, and affect nutrition and development. A small tooth can affect the whole body, and caring for your teeth should be like caring for your body. I always eat with the left side of my teeth, so what is wrong with chewing food with one side of my teeth for a long time? From the medical point of view, people should chew food in a balanced way on both sides, so that the dental bed on both sides can be evenly stimulated, which is conducive to the normal development of teeth, jawbone, and the corresponding muscles. However, some people are forced to use one side of the teeth to chew food for a long time because of early loss of milk teeth, or caries (commonly known as insect teeth), or lost a few teeth not repaired in time, or the third molar obstruction caused by inflammation, so that over time, it becomes a habit. “Habit becomes nature”, afterwards always chew food with one side of the teeth. According to the principle of “use in waste”, the side that often chews, the muscles are developed, the face is fat, while the side that rarely chews, it appears atrophied, asymmetrical, which affects the beauty of the face, but also makes the balance of the chewing muscles out of balance, resulting in dysfunction of the jaw joint. If the movement between the components of the mandibular joint is dysfunctional, it will cause a combination of symptoms such as painful opening of the mouth and popping of the joint. The side that does not chew food is not functionally stimulated, resulting in a large amount of food debris and tartar, which is deposited around the teeth and causes changes in the periodontal support bone. At this time, contact with the gums is prone to bleeding, and symptoms such as bad breath appear. In order to prevent the adverse effects of unilateral chewing of food on the mouth, patients with this bad habit should change from unilateral chewing to bilateral chewing. This may not be very habitual at the beginning, but slowly it will be taken for granted. If you have lost teeth without restoration, caries or jaw joint dysfunction, you should go to the hospital dentistry department to do the necessary examination and treatment in time.